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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,55 @@ | ||
| part of '../../variance.dart'; | ||
|
|
||
| abstract class PaymasterBase {} | ||
| class PaymasterResponse { | ||
| final Uint8List paymasterAndData; | ||
| final BigInt preVerificationGas; | ||
| final BigInt verificationGasLimit; | ||
| final BigInt callGasLimit; | ||
|
|
||
| class Paymaster {} | ||
| PaymasterResponse({ | ||
| required this.paymasterAndData, | ||
| required this.preVerificationGas, | ||
| required this.verificationGasLimit, | ||
| required this.callGasLimit, | ||
| }); | ||
|
|
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| factory PaymasterResponse.fromMap(Map<String, dynamic> map) { | ||
| return PaymasterResponse( | ||
| paymasterAndData: hexToBytes(map['paymasterAndData']), | ||
| preVerificationGas: BigInt.parse(map['preVerificationGas']), | ||
| verificationGasLimit: BigInt.parse(map['verificationGasLimit']), | ||
| callGasLimit: BigInt.parse(map['callGasLimit']), | ||
| ); | ||
| } | ||
| } | ||
|
|
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| class Paymaster { | ||
| final RPCProviderBase _rpc; | ||
| final Chain _chain; | ||
| Map<String, String>? _context; | ||
|
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| set context(Map<String, String>? context) { | ||
| _context = context; | ||
| } | ||
|
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| Paymaster(this._chain, this._rpc, [this._context]); | ||
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| Future<UserOperation> intercept(UserOperation operation) async { | ||
| final paymasterResponse = await sponsorUserOperation( | ||
| operation.toMap(), _chain.entrypoint, _context); | ||
|
|
||
| return operation.copyWith( | ||
| paymasterAndData: paymasterResponse.paymasterAndData, | ||
| preVerificationGas: paymasterResponse.preVerificationGas, | ||
| verificationGasLimit: paymasterResponse.verificationGasLimit, | ||
| callGasLimit: paymasterResponse.callGasLimit, | ||
| ); | ||
| } | ||
|
|
||
| Future<PaymasterResponse> sponsorUserOperation(Map<String, dynamic> userOp, | ||
| EthereumAddress entrypoint, Map<String, String>? context) async { | ||
| final response = await _rpc.send<Map<String, dynamic>>( | ||
| 'pm_sponsorUserOperation', [userOp, entrypoint.hex, context]); | ||
| return PaymasterResponse.fromMap(response); | ||
| } | ||
| } |
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